高中数学知识密度大、抽象性高、独立性强,学生自学的难度大,需要有教师的教导和参与才能完成.教师作为学生学习的促进者、教育的研究者、课程的建设和开发者,在新课改要求学生养成积极主动的学习态度、教师关注学生的学习兴趣和经验的前提下,要学会尊重、赞赏学生,通过有效的提问来帮助、引导学生更有效地学习.提问是数学课堂上最重要的活动之一,学习讨论、探索等切磋过程,都需要通过问答来实现. High school mathematics knowledge density, high abstract, strong independence, students difficult to self-study, teachers need to be taught and participate in the completion of the teacher as a teacher learning facilitators, educators, curriculum construction and development, In the new curriculum reform requires students to develop a proactive attitude toward learning, teachers pay attention to students’ interest in learning and experience under the premise of learning to respect and appreciation of students, through effective questioning to help and guide students to learn more effectively. One of the most important activities in the classroom, learning discussion, exploration and other learning process, need to be achieved through question and answer.